TopRq.com

Aircraft are vehicles which are able to fly by being supported by the air, or in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Although rockets and missiles also travel through the atmosphere, most are not considered aircraft because they use rocket thrust instead of aerodynamics as the primary means of lift...

A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...

Tropicana Sun is a very cool art installation in Trafalgar Square, London, that brightens a cold dark mid-winter day. Dawn broke early today after an artist installed a fake sun in Trafalgar Square to chase away the Monday morning blues. Delighted onlookers in central London bathed in warm sunlight as the spectacular installation began to glow at 6.51am on a chilly January day...

Car trailers that look like the babies of the real cars. One such trailer costs about $3,700. Travel trailer A travel trailer or caravan is towed behind a road vehicle to provide a place to sleep which is more comfortable and protected than a tent (although there are fold-down trailer tents). It provides the means for people to have their own home on a journey or a vacation, without relying on a motel or hotel, and enables them to stay in places where none is available...